Lighting fixture



E. F. GUTH LIGHTING FIXTURE June 5, 1934.

Filed Oct. 29, 1932 FIG.

ZQEE SQ-M ORNEY Patented June 5, 1934 more TENT

LIGHTING FIXTURE Edwin F. Goth, Webster Groves, Mo.

Application October 29, 1932,

(Cl. tie-78) Claims.

My invention relates to that class of lighting fixtures which are knownas indirect.

It is well known that the use of the so-called total indirect type ofillumination causes or produces a hollow effect upon the room due to theentire absence of local iiiumination.

To overcome this objection illuminaung o gineers have resorted to thattype of fixture termed semi-indirect These fixtures are do sirable froman artistic standpoint but lose many of the esirable advantages of thetotal indirect. I

My invention has for its object to provide a fixture which will performall of the functions of a total indirect fixture but which will redirectsome of the reflected rays into a bowl formed of diffusing glass servingto softly i1- luminate it, thereby overcoming the objectionableappearance of a total indirect fixture. A further object of my inventionis to obtain such illumination of the bowi without material loss ofefficiency.

A further object of my invention is to provide a configuration for theglass bowl so that the exterior of the opaque reflector enployed for theindirect lighting will be slightly illuminated thereby removing the darkor black appearance of the indirect fixture.

My means of accompiishing the foregoing objects may be more readilyunderstood by having reference to the accompanying drawing which ishereunto annexed and made a part of this specification in which Fig. 1is a side elevation of my improved lighting fixture, part of theexterior being broken away to show the interior construction, theceiling connection being shown broken off at one side;

2 is a modified form; and

Fig. 3 is an enlarged detail view.

Similar reference numerals refer to similar parts throughout the entiredescription.

As shown in the drawing the fixture is supported by a stem 1, the upperend of which is preferably provided with a swivel to ensure its fixturehanging plump, a canopy 3 is mounted at the ceiling to cover the outletor junction box (not shown).

A socket 4 is secured to the lower end of the stem 1, as illustrated,this is constructed in accordance with my Patent No. 1,722,743, butobviously any type of socket may be used.

A socket cover 5 encloses the upper part of the socket 4.

An opaque reflector 6 is suspended by wire links '1.

Serial No. 64%,210

The interior of the reflector '6 finished in white porcelain enar. The 1Jper ends of the links 7 are fastened to a collar 8 which is providedwith threads 9 which fit the threads on the socket 4:. Though I havedescribed a specific suspension means it will be apparent to personsskilled in the art that any suitable or convenient means may employedfor this purpose.

An electric lamp bulb 11 is mounted in the socket 4.

The reflector 6 is shown as inverted howl ing a closed bottom but noparticular conraticn is requisite, for it will vary as the is to be putvuse to which it Adjacent the bottom of the reflector 1 form an annulargroove channel or trough 12 the outer wall 13 of which is to ticai andthe inner wail 16 is inclined as shown. A mult plicity of apertures 15are punched in the inner wall 16 of the groove 12.

I secure a translucent glass bowl 24 to the bottom of the reflector 6 asshown, the lip 17 of the bowl 24 contacts the bottom of the reflector 6just inside of the annular groove 12. This bowl 24 may be secured to thereflector 6 in any desired manner; as shown in the drawing a screw 18depends from the center of the reflector 6 and passes through an opening19 formed in the glass bowl 2 1. A nut 20 serves to hold the bowlsecurely in place. As clearly seen from the drawing I construct the bowl24 so that it has a portion 21 which projects beyond the wall 13.

This feature may be dispensed with if desired.

The operation of my device is as follows: When the current is turned onand the lamp is illuminated some of the light rays will impinge upon thereflecting surface of the wall 13; these rays will be reflected andre-directed passing through the apertures 15 into the globe 24, whichwill be thereby softly illumined. When the bowl 24 is constructed sothat it has the outwardly projecting portion 21, the light from thisportion will light up the exterior surface of the opaque reflector 6sufficiently to eliminate any darkness thereof.

Although I have described in some detail the construction of a lightingfixture embodying my invention, it is not to be understood that this isa limitation but merely to describe a preferred form and I do not wishto be limited thereto, except as such limitations appear in the claims.

Under some conditions it may be deemed desirable to have a completelyenclosed unit. I accomplish this in the manner shown in Fig. 2 in whichI provide a transparent glass cover 22 which has a central opening 23which fits the collar. When this cover 22 is in place it completelycloses and covers the interior of the fixture. By forming it oftransparent glass I am able to secure the desired result without loss ofefliciency.

Having described my invention, what I regard as new and desire to secureby Letters Patent is:

1. In a lighting fixture having a lamp, a support therefor, an opaquereflector having bottom and side walls, supporting means therefor, saidreflector having an annular groove formed in the bottom adjacent theside wall, the outer wall of said groove being substantially vertical,the inner wall being inclined, a translucent globe secured to the bottomof said reflector, there being a multiplicity of apertures through saidinclined wall which are shielded from the direct rays of light wherebyonly reflected rays of light can reach said apertures and pass throughthe interior of said translucent globe to illumine it.

2. In a lighting fixture having a lamp, a support therefor, an opaquereflector having bottom and side walls, supporting means therefor, saidreflector having an annular groove formed in the bottom adjacent theside wall, the outer wall of said groove being substantially vertical,the inner wall being inclined, a translucent globe secured to the bottomof said reflector, there being a multiplicity of apertures through saidinclined wall which are shielded from the direct rays of light wherebyonly reflected rays of light can reach said apertures and pass throughthe interior of said translucent globe to illumine it, said globe havingan outwardly extending portion which softly illumines the exterior ofsaid opaque reflector.

3. In a lighting fixture having a light source, a support therefor, aninverted opaque reflector having a closed bottom wall, supporting meansfor said reflector, a plurality of apertures in the lower portion ofsaid reflector substantially at the periphery of the bottom wall, atranslucent bowl supported below the bottom of said reflector, said bowlhaving a peripheral portion extending inwardly thereof and covering saidapertures whereby light rays, upon reflection, will pass said aperturesand the inwardly extending portion of said bowl, thereby diffuselyilluminating said bowl.

4. A lighting fixture comprising an inverted opaque reflector providedwith a closed bottom wall, a plurality of apertures in the bottom Walladjacent the periphery thereof, a translucent bowl mounted below thebottom wall and having a peripheral portion extending inwardly thereofbelow the peripheral portion of the bottom wall and covering saidapertures.

5. In a lighting fixture having a light source, a support therefor, anopaque reflector having a closed bottom wall and an upwardly facingsubstantially conical side wall, a channel formed between the bottomwall and the conical wall, a plurality of apertures in the inner wall ofsaid channel, a translucent bowl supported below the bottom of saidreflector, said bowl having a peripheral portion extending inwardlythereof and covering said apertures, whereby light rays upon reflectionwill pass said apertures and the inwardly extended portion of said bowl,thereby diffusely illuminating said bowl.

EDWIN F. GUTI-I.

